10002020002 has 8 divisors (see below), whose sum is σ = 16157109276. Its totient is φ = 4616316912.

The previous prime is 10002019981. The next prime is 10002020003. The reversal of 10002020002 is 20002020001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9972219321 + 29800681 = 99861^2 + 5459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10002020003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192346513 + ... + 192346564.

Almost surely, 2^10002020002 is an apocalyptic number.

10002020002 is a deficient number, since it is larger than the sum of its proper divisors (6155089274).

10002020002 is a wasteful number, since it uses less digits than its factorization.

10002020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384693092.

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 10002020002 its reverse (20002020001), we get a palindrome (30004040003).

Subtracting 10002020002 from its reverse (20002020001), we obtain a palindrome (9999999999).

The spelling of 10002020002 in words is "ten billion, two million, twenty thousand, two".